APD210/310/410
High Sensitivity Detector UnitK E Y S P E C I F I C AT I O N S■ High Speed Response:

3 dB Bandwidth 5 MHz to 1 GHz
for APD210/310
5 MHz to 900 MHz for APD410■ Spectral Range:
APD210: 400 -1000 nm
APD310: 850 -1650 nm
APD410: 200 -1000 nm■ Temperature Compensated Gainfor 10°C to 40°C Ambient Temperature

A P P L I C AT I O N S

For applications that require highest sensitivity, the APD avalanche photodiodes
can provide an extremely sensitive alternative to traditional PIN photodiodes. The
APD is sensitive and fast enough for the characterization of, for example, pulsed
solid-state lasers on the nanosecond time scale. It maintains high gain stability
over the 10°C to 40°C temperature range by utilizing a temperature compensation
circuit, which adjusts the ~150 V DC bias to ensure operation near the breakdown
voltage. The APD410 has an improved sensitivity in the UV to visible range.

APD210

Pulse Response APD410 to a sub-250 fs Pulse Train at 650 nm

0.2
0.0

1.0
0.8

0.8
0.6
0.4
0.2

-100102030-20-101.0Photosensitivity [A/W]

APD210(x 50)

0.80.60.4
0.2

0.001020-0.8-3030-20-1001020

Time [ns]Time [ns]Spectral Response APD310

Spectral Response APD410

Time [ns]Spectral Response APD210

0.2-0.6

APD3100.8

Photosensitivity [A/W]-20-0.4-30

0.4-0.4-0.2

-0.6

0.6

-0.2

0.0-0.4

Time Characteristics

1.2

Signal [norm.]

Signal [norm.]

Signal [norm.]

0.4-0.2

Photosensitivity [A/W]

Amplifier■ Continously Adjustable Gain Setting■ Long Term Field Tested in ourFC8004 and FC1500 OpticalFrequency Synthesizer

1.00.60.6
0.40.20.430

APD410(x 50)

0.20.00.0400

ture Compensated Setup■ Integrated Radio Frequency

Time Characteristics

1.20.81.0■ Avalanche Photodiode Tempera-

APD410

Pulse Response APD310 to a sub-250 fs Pulse Train at 1560 nm

Time Characteristics

1.0-30F E AT U R E S

APD310

Pulse Response APD210 to a sub-250 fs Pulse Train at 780 nm
1.2■ Fast Laser Pulses■ Ultra Low Light Level Signals■ Beat Signal of Low Level Inputs

0.0
600

800

Wavelength [nm]

1000

800

1000

1200

1400

Wavelength [nm]

1600

1800

200400600

Wavelength [nm]8001000

APD210/310/410

High Sensitivity Detector Unit
S P E C I F I C AT I O N SDetector Type
Optical Input*
Max. Incident Power**
Operating Temperature
Spectral Range
Detector Diameter
Frequency Range
3 dB Bandwidth
Rise Time
Maximum Gain***
Dark State Noise Level
NEP (calculated)
Output Coupling
Output Impedance
Signal Output
Output Connectors
Supply Voltage****Current Consumption

APD210Si
Freespace
10 mW
10-40°C
400-1000 nm0.5 mm
1-1600 MHz
5-1000 MHz
500 ps
2.5 x 105 V/W @ 800 nm-80 dBm
0.24 pW/√ HzAC50 W
Vpp =1 V
BNC+12 to +15 V
200 mA

APD310InGaAsFreespace
10 mW
10-40°C
850-1650 nm
0.04 mm
1-1800 MHz
5-1000 MHz
500 ps
2.5 x 104 V/W @ 1500 nm-80 dBm
13.3 pW/√ Hz
AC50 W
Vpp =1 V
BNC+12 to +15 V
200 mA

APD410Si
Freespace
10 mW
10-40°C
200-1000 nm
0.2 mm1-1600 MHz
5-900 MHz
500 ps4.5 x 104 V/W @ 650 nm-80 dBm
87,6 pW/√ HzAC50 W
Vpp =1 V
BNC+12 to +15 V200 mA* With adaptor for Thorlabs SM05 series. ** Equals optical damage threshold. ***Gain adjustable via pushbuttons. ****Power supply included,with adaptors for EU/USA, please ask for different types.

MECHANICAL OUTLINEO R D E R I N G I N F O R M AT I O N
Product CodePrice

APD2102270 EUR

APD3102760 EUR

APD4102270 EUR

Prices and specifications are subject to change without notice. Custom modifications are available, please inquire.

Menlo Systems GmbHThorlabs, Inc.
Menlo K.K.
Menlo Systems China
Menlo Systems, Inc.
T+49 89 189 166 0
T+1 973 579 7227 T+81 9074 092 021
T+86 21 6071 1678
T+1 973 300 4490
sales@menlosystems.com ussales@menlosystems.com sales@thorlabs.com jpsales@menlosystems.com chinasales@menlosystems.com

www.menlosystems.com

D-APD210/310/410-EN 08/01/2024